• Electrical Engineering Reference

# Propagation Of Electromagnetic Waves MCQ Questions And Answers - Electromagnetic Theory

Propagation Of Electromagnetic Waves MCQs : This section focuses on the "Propagation Of Electromagnetic Waves" in Electromagnetic Theory. These Multiple Choice Questions (MCQs) should be practiced to improve the Electromagnetic Theory skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

Question 1

The propagation of electromagnetic waves through the vacuum happens at a speed of ?

A. (1.8)*(10^8)m/s
B. (9.1)*(10^8)m/s
C. 3*(10^8)m/s
D. (5.1)*(10^8)m/s

Question 2

The propagation of electromagnetic waves through any medium happens at a speed which is _____ that of the speed in the vacuum.

A. greater than
B. less than
C. equal
D. infinite

Question 3

When the electromagnetic waves are propagated along the surface, the propagation is known as?

A. Ground waves
B. Space waves
C. Sky waves
D. All of the above

Question 4

Which of the following is true Properties of electromagnetic waves?

A. These waves travel at the speed of light
B. For propagation of these waves medium is not required
C. These waves undergo interference and diffraction and can be polarized
D. All of the above

Question 5

Electromagnetic waves travel in transverse form.

A. TRUE
B. FALSE
C. Can be true or false
D. Can not say

Question 6

In conductors, which two parameters are same?

A. Wavelength and phase constant
B. Phase and attenuation constant
C. Attenuation constant and skin depth
D. Skin depth and wavelength

Question 7

In perfect conductors, the phase shift between the electric field and magnetic field will be

A. 0
B. 15
C. 30
D. 45

Question 8

The attenuation constant in lossless dielectrics will be

A. 1
B. 0
C. -1
D. infinite

Question 9

When the electromagnetic waves are propagated through the sky and get reflected back to the earth from the ionosphere, the propagation is known as?

A. Ground waves
B. Space waves
C. Sky waves
D. All of the above